CSplRescueCipher

The Rescue cipher over Curve25519's scalar field in Counter (CTR) mode, with a fixed block size m = 5. See: https://tosc.iacr.org/index.php/ToSC/article/view/8695/8287

Constructors

new CSplRescueCipher(sharedSecret): CSplRescueCipher

Constructs a RescueCipher instance using a shared secret. The key is derived using RescuePrimeHash and used to initialize the RescueDesc.

Parameter	Type	Description
`sharedSecret`	`Uint8Array`	The shared secret to derive the cipher key from.

CSplRescueCipher

Property	Type
`cipher`	`RescueCipherCommon`

decrypt(ciphertext, nonce): bigint[]

Deserializes and decrypts the ciphertext vector in Counter (CTR) mode.

Parameter	Type	Description
`ciphertext`	`number`[][]	The array of arrays of numbers (each 32 bytes) to decrypt.
`nonce`	`Uint8Array`	A 16-byte nonce for CTR mode.

bigint[]

The decrypted plaintext as an array of bigints.

encrypt(plaintext, nonce): number[][]

Encrypts the plaintext vector in Counter (CTR) mode and serializes each block.

Parameter	Type	Description
`plaintext`	`bigint`[]	The array of plaintext bigints to encrypt.
`nonce`	`Uint8Array`	A 16-byte nonce for CTR mode.

number[][]

The ciphertext as an array of arrays of numbers (each 32 bytes).